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Computation tree logic information


Computation tree logic (CTL) is a branching-time logic, meaning that its model of time is a tree-like structure in which the future is not determined; there are different paths in the future, any one of which might be an actual path that is realized. It is used in formal verification of software or hardware artifacts, typically by software applications known as model checkers, which determine if a given artifact possesses safety or liveness properties. For example, CTL can specify that when some initial condition is satisfied (e.g., all program variables are positive or no cars on a highway straddle two lanes), then all possible executions of a program avoid some undesirable condition (e.g., dividing a number by zero or two cars colliding on a highway). In this example, the safety property could be verified by a model checker that explores all possible transitions out of program states satisfying the initial condition and ensures that all such executions satisfy the property. Computation tree logic belongs to a class of temporal logics that includes linear temporal logic (LTL). Although there are properties expressible only in CTL and properties expressible only in LTL, all properties expressible in either logic can also be expressed in CTL*.

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Computation tree logic

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of positional logic Linear temporal logic (LTL) temporal logic without branching timelines Computation tree logic (CTL) temporal logic with branching...

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Model of computation

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machines Turing machines Decision tree model Functional models include: Abstract rewriting systems Combinatory logic General recursive functions Lambda...

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Linear temporal logic

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monadic first-order logic of order, FO[<]—a result known as Kamp's theorem— or equivalently to star-free languages. Computation tree logic (CTL) and linear...

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Computation tree

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Modal logic

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temporal logic include propositional dynamic logic (PDL), (propositional) linear temporal logic (LTL), computation tree logic (CTL), Hennessy–Milner logic, and...

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Probabilistic CTL

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Probabilistic Computation Tree Logic (PCTL) is an extension of computation tree logic (CTL) that allows for probabilistic quantification of described...

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CTL

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Corporation, manufacturer of Chromebooks Certificate Transparency Logs Computation tree logic Control key, a computer keyboard key CTL timecode, a timecode used...

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List of model checking tools

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(so-called Markov reward models). CTL: Computation Tree Logic; a branching-time logic, meaning that its model of time is a tree-like structure in which the future...

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Infer Static Analyzer

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specific language for abstract syntax tree linting, based on ideas from Model Checking for Computation Tree Logic. Infer is mostly written in the OCaml...

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Logic programming

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problem domain. Computation is performed by applying logical reasoning to that knowledge, to solve problems in the domain. Major logic programming language...

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Logic is the study of correct reasoning. It includes both formal and informal logic. Formal logic is the study of deductively valid inferences or logical...

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diagram Büchi automaton Computation tree logic Counterexample-guided abstraction refinement Formal verification Linear temporal logic List of model checking...

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Principles of Model Checking

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counterexamples. The fifth and sixth chapters explore linear temporal logic (LTL) and computation tree logic (CTL), two classes of formula that express properties. LTL...

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Satisfiability modulo theories

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reachability, collision detection for convex hulls, minimum cuts, and computation tree logic. Every Datalog program can be interpreted as a monotonic theory...

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Telephony Integration CTFE—Compile-time function execution CTL—Computational Tree Logic CTM—Close To Metal CTS—Clear To Send CTSS—Compatible Time-Sharing...

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Theoretical computer science

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focuses on the abstract and mathematical foundations of computation, such as the theory of computation, formal language theory, the lambda calculus and type...

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Discrete mathematics

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principle, and has close ties to logic, while complexity studies the time, space, and other resources taken by computations. Automata theory and formal language...

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Abstract model checking

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\supseteq } real Abstract interpretation Automated theorem proving Computation tree logic Formal verification List of model checking tools Program analysis...

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